Douglas Laboratories® Opti-EPA™ 500 is concentrated marine fish oil, providing enriched levels of eicosapentaenoic acid (EPA, 300 mg) and docosahexaenoic acid (DHA, 200 mg). Opti-EPA 500 delivers high levels of EPA and DHA, and is lower in saturated fatty acids than regular marine fish oil. Opti-EPA 500 is strictly screened for the absence of any toxic metals and chemicals, and is completely free of cholesterol. The oil is carefully processed and handled to avoid oxidation.